Vocabulary
A _____ represents an unknown amount/quantity or value.
A variable represents an unknown amount/quantity or value.
-5x + 9x -15 = 1
4
x - 14 - 2x = 4
-18
3(2x - 9) = 3
x = 5
___ ___ have the same variable or exponent. We combine these together
like terms
- 2x - 10 + 4p = 14
12
5x - 2x - 31 = 11
14
3x + 4 + x + 2 = -30
x = -9
Define combining like terms
adding or subtracting terms that have the same variable
2( n + 5) = -2
-6
4a + 5 - 8a = 25
-5
2 +9(x-1) = 2
x = 1
What is the first thing to do when solving multi-step equations with parentheses ( ) ?
The Distributive Property is the first step to follow when solving multi-step equations
6x - (3x + 8) = 16
8
3x + 4 - 2x - 10x =31
-3
2(x + 3) + 1 = 31
x = 12
The four steps to solving multi-equations are 1. ___ 2. ___ 3.____ 4._____.
The four steps to solving multi-equations are 1. Identify if there are Parentheses 2. Distribute 3. Combine like terms 4. Solve.
4(2x -7) + 5 = -39
-2
3x + 12x - 20 = 25
3
2x - 1 +2(x - 1) = - 7
x = -1